Unsurpassed voice clarity

Expand your rich user experience with wideband audio for unsurpassed voice clarity & quality, with this Cisco SPA508G

VoIP / SIP FXO Adapters

By connecting an analogue telephone that is already in your house to a FXO/FXS VoIP ATA, you can benefit from receiving and making normal calls over your telephone line and low cost, crystal clear VoIP calls via a router which is connected to the Internet (and you don't need to turn on your PC). Having an FXO/FXS VoIP ATA allows you to have each phone with its own VoIP line and make simultaneous VoIP Calls, Forward/receive PSTN calls from VoIP and visa versa.

Differences between an FXO and FXS ports

  • FXO ports
    • Connect to the Public Switched Telephone Network (PSTN is the conventional phone line).
    • Having an FXO port on the adapter will allow you to switch between making/receiving calls VoIP calls (over the Internet) and calls over the PSTN (Analogue phone line).
  • FXS ports
    • Connect to analogue phones or fax machines.
    • Each FXS port will enable you to connect an analogue telephone to the adapter to make or receive calls.
    • VoIP adapters sometimes have more than 1 x FXS ports. 2 x FXS ports for example, would allow you to have 1 cordless DECT phone and one fax machine connected to the VoIP adapter, or 2 phones each with their own VoIP line.
Cisco SPA232D DECT VoIP/SIP ATA w/ Built-in Router, 1-FXS, 1-FXO
View more Cisco SMB products

Cisco SPA232D DECT VoIP/SIP ATA w/ Built-in Router, 1-FXS, 1-FXO

The revolutionary advances in the Cisco SPA232D include an integrated DECT base station!...
ETA 08/05/2016
£71.34 / £59.45 ex vat
Cisco SPA122 VoIP/SIP ATA w/ Built-in Router, 2-FXS Ports
View more Cisco SMB products

Cisco SPA122 VoIP/SIP ATA w/ Built-in Router, 2-FXS Ports

The Cisco SPA122 ATA with router combines VoIP services with an internal router for LAN connectivity....
4 of 5 stars
70 IN STOCK
£48.30 / £40.25 ex vat
Cisco SPA8000 VoIP/SIP to Analogue/ATA Telephone Gateway w/ 8-FXS Ports
View more Cisco SMB products

Cisco SPA8000 VoIP/SIP to Analogue/ATA Telephone Gateway w/ 8-FXS Ports

The Linksys SPA8000 8-Port IP Telephony Gateway is a full featured Analog Terminal Adapter (ATA) for small business enterprises...
37 IN STOCK
£182.42 / £152.02 ex vat
Sangoma VS0113 Vega 50 Europa VoIP/SIP to Analogue/ATA Telephone Gateway w/ 8-FXS, 2-FXO Ports
View more Sangoma products

Sangoma VS0113 Vega 50 Europa VoIP/SIP to Analogue/ATA Telephone Gateway w/ 8-FXS, 2-FXO Ports

The Sangoma Vega 50 Europa Gateway connects a range of legacy telephony equipment including PBXs, ISDN telephones, BRI ISDN, analog phones & PSTN to a...
4 IN STOCK
£523.50 / £436.25 ex vat
Sangoma VS0114 Vega 50 Europa  VoIP/SIP to Analogue/ATA Telephone Gateway w/ 4-FXS, 2-FXO Ports
View more Sangoma products

Sangoma VS0114 Vega 50 Europa VoIP/SIP to Analogue/ATA Telephone Gateway w/ 4-FXS, 2-FXO Ports

The Sangoma Vega 50 Europa Gateway connects a range of legacy telephony equipment including PBXs, ISDN telephones, BRI ISDN, analog phones & PSTN to a...
4 IN STOCK
£296.26 / £246.88 ex vat
Sangoma VS0119 Vega 50 Europa  VoIP/SIP to Analogue/ATA Telephone Gateway w/ 4-FXS Ports
View more Sangoma products

Sangoma VS0119 Vega 50 Europa VoIP/SIP to Analogue/ATA Telephone Gateway w/ 4-FXS Ports

The Sangoma Vega 50 Europa Gateway connects a range of legacy telephony equipment including PBXs, ISDN telephones, BRI ISDN, analog phones & PSTN to a...
3 IN STOCK
£348.00 / £290.00 ex vat
Sangoma VS0118 Vega 50 Europa  VoIP/SIP to Analogue/ATA Telephone Gateway w/ 8-FXO Ports
View more Sangoma products

Sangoma VS0118 Vega 50 Europa VoIP/SIP to Analogue/ATA Telephone Gateway w/ 8-FXO Ports

The Sangoma Vega 50 Europa Gateway connects a range of legacy telephony equipment including PBXs, ISDN telephones, BRI ISDN, analog phones & PSTN to a...
2 IN STOCK
£562.50 / £468.75 ex vat
Sangoma VS0152 Vega 5000  VoIP/SIP to Analogue/ATA Telephone Gateway w/ 16-FXS, 2-FXO Ports
View more Sangoma products

Sangoma VS0152 Vega 5000 VoIP/SIP to Analogue/ATA Telephone Gateway w/ 16-FXS, 2-FXO Ports

The Sangoma Vega 5000 Gateway connects a range of legacy telephony equipment including PBXs, ISDN telephones, BRI ISDN, analog phones & PSTN to an IP ...
Call for latest
£1,012.50 / £843.75 ex vat

Subscribe to our newsletter